Suzuna Kuraki, a shrine maiden burdened by her family's legacy, is plagued by mysterious erotic dreams and strange physical sensations following her sacred rituals. As she prepares for the rare Expecting Moon Ceremony, her grandmother forces her into an arranged marriage to preserve the Kuraki lineage. Upon meeting her aloof new husband, Suzuna feels a haunting familiarity that mirrors her dreams, but her new life begins with immediate conflict and chaos.